13187575625 has 20 divisors (see below), whose sum is σ = 18833371392. Its totient is φ = 9042906000.

The previous prime is 13187575607. The next prime is 13187575649. The reversal of 13187575625 is 52657578131.

It is not a de Polignac number, because 13187575625 - 2¹⁸ = 13187313481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1502777 + ... + 1511526.

Almost surely, 2^13187575625 is an apocalyptic number.

It is an amenable number.

13187575625 is a deficient number, since it is larger than the sum of its proper divisors (5645795767).

13187575625 is an frugal number, since it uses more digits than its factorization.

13187575625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014330 (or 3014315 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 50.

The spelling of 13187575625 in words is "thirteen billion, one hundred eighty-seven million, five hundred seventy-five thousand, six hundred twenty-five".